Spark-arrester



C. E. LEVAN.

SPARK ARRESTER.

PLICATloN FILED MA`Y14 Patented Apr. 19, 1921.

Wmme M\ t vstack and are then raar este.

CLARENCE E. LEVAN, OF BERWICK, PENNSYLVANIA.

srAnir-Anniis'riin.

Specification of Letters Patent.

rat-@atea apr. ia, mail'.

Appiieauon mea nay i4, 191s. seriai ivo. 234,474.

To all whom 'it may concern.'

Be it known that l, CLARENCE E. Liivan, a citizen of the United States, residing at Berwick, in the county of Columbia, State of Pennsylvania, have invented certain new One object of the present invention is tov provide a novel and improved structure of this character capable of being slipped over the stack and by means of which the sparks will be prevented from being scattered along the railway but will be conveyed to a convenient receptacle on the locomotive. y

Another object is to provide a novel and improved means whereby the arrestingk device collects the sparks in an annular gutter around the stack and inclined to its axis, whereby they are delivered constantly from the gutter rather than permitted to accumulate therein.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a side elevation of a locomotive stack and a portion of the locomotive, showing the arresting device mounted on the stack. l

Fig. 2 is a top plan view of the same.

Fig. 3 is a vertical sectional view taken on the line 33 of Fig. 2.

Fig. 4t is a horizontal sectional view taken on the line 4-4 of Fig. 2.

Referring particularly to the accompanying drawing, 10`represents the stack of the locomotive 11, in connection with which my invention is used.

Adapted to be slipped onto the upper portion of the stack is a cylindrical sleeve 12, and carried by this sleeve are arms 13 which extend first straight upward alongside the deflected and carried inward for a short distance over `its mouth, as

clearly shown in the drawing, and connected to the upper ends of thesearms is a ring 13 carrying an inverted conical screen 14;, the apex of which is directed downwardly into and along the axis of the stack, and spaced therefrom, to permit the sparks from the stack to pass upwardly and outwardly against the outer face of said screen. The base or larger end of the cone 111 rises above said ring and is rolled outwardly as best seen -in Fig. 2, and then carried downward in a cylindrical extension or skirt inclosing and spaced some distance from the stack. Secured to the lower portion or skirt of the screen is a metal gutter 15 which encircles the stack and has a spout 16 which connects with a; conveying pipe 17, leading vto a receptacle 18, mounted on the locomotive. It

will be noted that the inner edge of the gutter is connected to the sleeve, while the outer wall is connected to the skirt of the screen, and the bottom is curved transversely. The gutter as a whole is an annular element surrounding the stack and receiving sparks from the screen but it lies in av plane inclined slightly to the axis of the stack and with its delivery spout 16 at the lowest point.

By thisfconstruction there is the least resistance to the discharge of smoke and sparks from the spout. The smoke may pass straight upward, as there is nothing above the mouth of the stack to resist its passage. rlhe sparks flow upward and diverge along the walls of the inverted cone, pass its base and travel around within the curve or roll (and those which can pass through the screen will here do so), and then pass down within the skirt and drop into the imperforate gutter 15, wherein they automatically travel around the stack and out the delivery spout 16.

What is claimed is:

In a spark arrester for smoke stacks, the

combination with a screen element including an inverted cone whose apex stands within the stack at its axis and whose walls pass through the'mouth of the stack and out of contact therewith, being rolled outward and downward into an encircling skirt; of a sleeve` around the stack, arms rising therefrom and bent inward over the upper end of the stack; a ring carried by the upper ends of said arms for supporting said screen element, andan imperforate annular gutter In testimony whereof, I affix my signature, Whose inner edge lneloses the stack and inthe presence of tivowitnesses.

Whose outer eclO'e is connected With said w skirt, the bottoni-Jef the gutter being Curved QLARENCE LEVAN transversely and standing oblique t0 the axis Witnesses:

of the stack and cone and having a delivery WM. LDMBERRX,v

opening at its lowest point. n CARL DAVIS. 

